Cobrit

Cobrits are springy creatures, hopping along the scorching dunes of Calidune. Their movement is entirely based on bouncing, and they are capable of spitting clusters of potent venom. Strangely, their venom only appears to affect aliens of Calidune, despite how rare they are, and how they survive.

The original from the Help Document:
These common purple snakes hop about on their springy bodies. Be careful not to touch them or the vemon they spit!